CVE-2026-7301
Critical
Description
SGLangs multimodal generation runtime scheduler's ROUTER socket binds to 0.0.0.0 by default and contains a sink that calls pickle.loads() on incoming messages, enabling RCE when exposed to the internet.
SeverityCritical
CVSS9.8
Exploit probability—
ProductLmsys Sglang
PublishedMay 18, 2026
First seenMay 18, 2026
Weakness typeCWE-502Deserialization of untrusted data
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| lmsys sglang | 0.5.10 | — |
| sglangPyPI | 0.5.5 ≤ v ≤ 0.5.12 | — |
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